Designing a three-dimensional CoFe2O4 cross-frame wrapped with carbon nanotubes for monitoring the environmental pollutant nitrobenzene

Ceramics International, Год журнала: 2024, Номер 50(19), С. 35516 - 35524

Опубликована: Июнь 26, 2024

Язык: Английский

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Oxygen vacancies enriched multi-channel-like metal-doped Co3O4 nanosheets by Lewis acid etching for detection of small biological molecules in apple juice and wine

Chemical Engineering Journal, Год журнала: 2022, Номер 454, С. 140085 - 140085

Опубликована: Окт. 30, 2022

Язык: Английский

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Enhanced As(III) detection under near-neutral conditions: Synergistic effect of boosted adsorption by oxygen vacancies and valence cycle over activated Au NPs loaded on FeCoOx nanosheets

Sensors and Actuators B Chemical, Год журнала: 2023, Номер 382, С. 133489 - 133489

Опубликована: Фев. 9, 2023

Язык: Английский

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Ultrafine Co₃O₄ Nanoparticle-Loaded Carbon Spheres for the Simultaneous Ultrasensitive Electrochemical Determination of Hydroquinone and Catechol

ACS Sustainable Chemistry & Engineering, Год журнала: 2023, Номер 11(47), С. 16764 - 16773

Опубликована: Ноя. 9, 2023

Owing to their toxicity, highly sensitive detection of the two main dihydroxyphenyl isomers hydroquinone (HQ) and catechol (CC) is great significance for environmental monitoring. In this work, a novel strategy has been developed prepare ultrafine Co3O4 nanoparticle-loaded carbon spheres (Co3O4/CSs) as high-performance electrochemical sensing materials simultaneous determination HQ CC. Ultrafine nanoparticles were formed uniformly decorated on surface through pyrolyzing cobalt phthalocyanine (CoPc) adsorbed carbonaceous (carbonaceous sphere@CoPc) in an inert nitrogen environment. Electrochemical measurements revealed that Co3O4/CSs-modified glassy electrode (GCE) exhibited excellent responses toward CC capability. The obtained limits low 2.6 3.4 nM, respectively. Simultaneous analysis with high repeatability anti-interference also demonstrated, fundamentally preserving individual sensitivity without any interference. selectivity have further discussed combination special structure composition Co3O4/CSs. Additionally, practicality Co3O4/CSs sensor was evaluated, satisfactory results real water samples.

Язык: Английский

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Regulating valence states of CuFe-PBA for the simultaneous electrochemical detection of Cd2+, Pb2+ and Hg2+ in food application

Talanta, Год журнала: 2024, Номер 273, С. 125848 - 125848

Опубликована: Март 2, 2024

Язык: Английский

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Surface oxygen vacancy adjustment and acetone sensing performance enhancement of ZIF-67 derived Co3O4 with trace Ni-doping

Materials Science in Semiconductor Processing, Год журнала: 2024, Номер 179, С. 108494 - 108494

Опубликована: Май 5, 2024

Язык: Английский

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Ultra-trace simultaneous detection of Hg(II), Cd(II), and Cu(II) and mechanism based on Co/CoO/Co3O4 Z-type heterojunctions

Sensors and Actuators B Chemical, Год журнала: 2022, Номер 374, С. 132725 - 132725

Опубликована: Сен. 24, 2022

Язык: Английский

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In-situ growth of porous rod-like tungsten oxide for electrochemical determination of cupric ion

Analytica Chimica Acta, Год журнала: 2023, Номер 1276, С. 341645 - 341645

Опубликована: Июль 20, 2023

Язык: Английский

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Preparation of MnOx/CC Electrode by One-Step Electrodeposition for Electrochemical Detection of Cd2+ in Water

Sensors, Год журнала: 2025, Номер 25(5), С. 1415 - 1415

Опубликована: Фев. 26, 2025

Transition metal oxides (e.g., MnOx) can effectively promote the redox reactions of heavy ions through abundant valence changes. However, relatively few studies have been conducted on application MnOx for detection Cd2+ without pre-enrichment conditions. For this reason, in study, was grown situ a carbon cloth substrate by one-step electrodeposition. The effect composition and its variation performance systematically investigated. morphology, structure, chemical materials were fully characterized scanning electron microscopy (SEM), X-ray diffraction (XRD), photoelectron spectroscopy (XPS). results show that deposition not only significantly increased active surface area electrodes but also facilitated transfer transition Mn2+/Mn3+↔Mn3+/Mn4+. water samples be successfully achieved pre-enrichment, electrode has good stability reproducibility. This study provides new design idea applying reference further optimization electrochemical sensors.

Язык: Английский

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Carbon fiber supported Co/Co3O4-embedded N-doped carbon microparticles for efficient overall seawater splitting and oxygen reduction

International Journal of Hydrogen Energy, Год журнала: 2022, Номер 48(10), С. 3759 - 3767

Опубликована: Ноя. 17, 2022

Язык: Английский

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